462624 SBC heads vs Patriot heads?? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 05-27-2008, 05:56 PM
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462624 SBC heads vs Patriot heads??

I've currently got big-valve GM iron heads (casting # 462624) installed with ARP screw-in studs. I know these heads have a bad rep, but the engine feels strong regardless. I'm running an Edelbrock Performer RPM intake, Performer 600cfm carb (also got a 750cfm Edelbrock carb sitting on a shelf) and Edelbrock Performer RPM cam.

My question is this... how much of a difference (in power and torque terms) would installing Patriot heads with 190cc runners make with my existing set-up?

Thanks,
Ian.

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Old 05-27-2008, 06:13 PM
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On a 350 with at least 9.5 compression, 30-40 hp.
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Old 05-27-2008, 09:25 PM
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I know these heads have a bad rep
WHICH ONES?
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